Record Class TwoPhaseCommands.DecideQuery

java.lang.Object

java.lang.Record

com.loomcache.server.transaction.twopc.TwoPhaseCommands.DecideQuery

Record Components:

txId - transaction id (non-null)

participantGroupId - the group asking

All Implemented Interfaces:

TwoPhaseCommands

Enclosing interface:

TwoPhaseCommands

public static record TwoPhaseCommands.DecideQuery(@NonNull UUID txId, int participantGroupId)
extends Record
implements TwoPhaseCommands

Query from a recovering participant to the coordinator: "what decision did you make for this transaction?" The coordinator responds by re-sending TwoPhaseCommands.DecideGroup if it has one, or ABORT if the transaction is unknown.

Nested Class Summary

Nested classes/interfaces inherited from interface TwoPhaseCommands

TwoPhaseCommands.CoordDecide, TwoPhaseCommands.CoordPrepare, TwoPhaseCommands.DecideAck, TwoPhaseCommands.DecideGroup, TwoPhaseCommands.DecideQuery, TwoPhaseCommands.Decision, TwoPhaseCommands.FrameWriter, TwoPhaseCommands.Kind, TwoPhaseCommands.PrepareAck, TwoPhaseCommands.PrepareGroup, TwoPhaseCommands.Vote

Field Summary

Fields inherited from interface TwoPhaseCommands

MAX_OPERATION_PAYLOAD_BYTES, MAX_PARTICIPANT_GROUP_COUNT, MAX_REASON_UTF_BYTES

Constructor Summary

Constructors

Constructor	Description
DecideQuery(@NonNull UUID txId, int participantGroupId)	Creates an instance of a DecideQuery record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
int	participantGroupId()	Returns the value of the participantGroupId record component.
byte @NonNull []	serialize()
final String	toString()	Returns a string representation of this record class.
@NonNull UUID	txId()	Returns the value of the txId record component.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DecideQuery

public DecideQuery(@NonNull UUID txId,
 int participantGroupId)

Creates an instance of a DecideQuery record class.

Parameters:

txId - the value for the txId record component

participantGroupId - the value for the participantGroupId record component

Method Details

serialize

public byte @NonNull [] serialize()

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

txId

public @NonNull UUID txId()

Returns the value of the txId record component.

Returns:

the value of the txId record component

participantGroupId

public int participantGroupId()

Returns the value of the participantGroupId record component.

Returns:

the value of the participantGroupId record component